NASA Materials and Processes Working Group Cooperative Efforts NASA Wide and With the Space Industry
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NMPWG Standardization effort technologies science ↗
Engineering topics
Hsieh, C.
Publications and source records attributed to Hsieh, C..
New HP (High Purity) Invar 36
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applications↗
Conductive White Thermal Control Paint for Spacecraft - Part 2
Thermal control paints were evaluated for use as electrically conductive white thermal control coatings on the saturn-bound cassini spacecraft.
silicate↗
Closed loop lab tests of NASA's Mini-Mast
A design strategy which integrates model reduction by modal cost analysis and a multiobjective controller synthesis algorithm is used to design controllers for NASA's Mini-Mast system. The necessary modeling and control algorithms are easily programmed in Matlab standard software. Hence, this method is very practical for controller design for large space structures. The design algorithm also presents a solution for the important problem of tuning multiple-loop controllers.
Hsieh, C.↗
An iterative algorithm combining model reduction and control design
A design strategy which integrates model reduction by modal cost analysis and a multiobjective controller design is proposed. The necessary modeling and control algorithms are easily programmed in Matlab standard software. Hence, this method is very practical for controller design for large space structures. The design algorithm also solves the very important problem of tuning multiple loop controllers (multi-input, multi-output, or MIMO). Instead of the single gain change that is used in standard root locus and gain and phase margin theories, this method tunes multiple loop controllers from low to high gain in a systematic way in the design procedure. This design strategy is applied to NASA's Mini-Mast system.
Hsieh, C.↗